. Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributed . —in the work-rooms. Steel, where such is ground and worked up—as bycutlers, file-makers, steel-grinders, needle and pin makers,tool makers, &c. Lead, where such is being worked with—as by file-makers, printers, white-lead manufacturers, plumbers,painters, glaziers, lapidaries, file-makers, lead-miners,type-founders, glazed card manufacturers, earthenwaremanufacturers, &c. Fabrics of clothing, , wool, silk, cotton, linen, fla
. Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributed . —in the work-rooms. Steel, where such is ground and worked up—as bycutlers, file-makers, steel-grinders, needle and pin makers,tool makers, &c. Lead, where such is being worked with—as by file-makers, printers, white-lead manufacturers, plumbers,painters, glaziers, lapidaries, file-makers, lead-miners,type-founders, glazed card manufacturers, earthenwaremanufacturers, &c. Fabrics of clothing, , wool, silk, cotton, linen, flax,&c., in factories of these articles. Wheat, and other flour, in mills, bakeries. Arsenic, in wall-paper, and artificial flower manu-factories. Copper, in brass founderies, copper smitheries, andtin-plate works. Bichromate of potassium, &c., in manufactories ofsuch. Pearl-dust, in button, &c., manufactories. Glass, in glass-works, sand-paper making, &c. Phosphorus in match manufactories, especially beforethe red or amorphous phophorus was used. Mercury, in silvering and gilding works — beforeelectrolysis was employed. PLATE
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphiablakis
